Federlin, Marianne and Hiller, Karl-Anton and Schmalz, Gottfried (2014) Effect of selective enamel etching on clinical performance of CAD/CAM partial ceramic crowns luted with a self-adhesive resin cement. CLINICAL ORAL INVESTIGATIONS, 18 (8). pp. 1975-1984. ISSN 1432-6981, 1436-3771
Full text not available from this repository. (Request a copy)Abstract
This study was conducted to evaluate a self-adhesive resin luting cement [RelyX Unicem 3MESPE-RXU] for luting partial ceramic crowns (PCCs) with and without selective enamel etching in a prospective, randomized clinical trial. Thirty-four patients had received the intended treatment. Two PCCs (Vita Mark II; Cerec 3D; Sirona) had been placed in a split-mouth design: one with RXU without enamel etching (RXU), the other with RXU with selective enamel etching (RXU + E). Restorations were evaluated at baseline (BL) and after 12, 24, and 36 months (USPHS criteria). For statistical analysis, the Chi-square test was applied (alpha = 0.05). Clinical survival of all restorations (n = 68) after 3 years was determined using Kaplan-Meier analysis. Twenty three patients (12 male/11 female) were available for clinical evaluation after 3 years. 19 RXU-PCCs were placed in molars, four in premolars, 18 RXU + E-PCCs in molars, five in premolars. Concerning clinical changes, no significant differences were found between luting strategies RXU/RXU + E at all recalls. Statistically significant changes over time were observed for marginal adaptation and marginal discoloration between BL and 36 m for RXU and RXU + E. For RXU + E, postoperative hypersensitivities decreased significantly from BL (n = 6) to 36 m (n = 0). Of the 68 restorations originally included, eight RXU and four RXU + E restorations failed. At 3 years, Kaplan-Meier survival of RXU was 72.9 %, that of RXU + E 87.6 %. Survival rates were not statistically significant different. Although clinical survival of RXU + E is slightly better at 3 years, restorations of both groups perform similar with respect to clinical changes over time as evaluated by modified USPHS criteria. The self-adhesive resin cement RXU can be used in conjunction with selective enamel etching, because survival rates of PCCs in the RXU + E group were not lower but, as a trend, even better than without enamel etching.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | LUTING MATERIAL; BOND STRENGTH; PREPARATION DESIGN; MARGINAL INTEGRITY; RELYX-UNICEM; SPLIT-MOUTH; INLAYS; ONLAYS; DENTIN; Controlled; Prospective clinical study; Partial ceramic crowns; Clinical evaluation; Self-adhesive cement; Selective enamel etching |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Zahnerhaltung und Parodontologie |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 08 Aug 2019 15:05 |
| Last Modified: | 08 Aug 2019 15:05 |
| URI: | https://pred.uni-regensburg.de/id/eprint/9294 |
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